Neptune is darn tricky to understand but when it comes to synastry I see Neptune as playing an important role. He can soften some of Saturn’s harsher edges and give us some relief from Pluto’s obsessions. Or he can lead us down the garden path and make both Saturn’s strictures and Pluto’s obsessive behaviors even worse. My husband's Leo Mars is trine my Aries Jupiter but out-of orb by Saggi's standard. So I think we still get some of the benefits of the trine but not as potently. According to Linda Goodman's Relationship Signs book, "This is a great vibration for partnerships of all kinds, whether marriage or business."